74258473 has 4 divisors (see below), whose sum is σ = 76819140. Its totient is φ = 71697808.

The previous prime is 74258461. The next prime is 74258489. The reversal of 74258473 is 37485247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15705369 + 58553104 = 3963^2 + 7652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74258473 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74258573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280290 + ... + 1280347.

It is an arithmetic number, because the mean of its divisors is an integer number (19204785).

Almost surely, 2^74258473 is an apocalyptic number.

It is an amenable number.

74258473 is a deficient number, since it is larger than the sum of its proper divisors (2560667).

74258473 is a wasteful number, since it uses less digits than its factorization.

74258473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560666.

The product of its digits is 188160, while the sum is 40.

The square root of 74258473 is about 8617.3356091080. The cubic root of 74258473 is about 420.3218866530.

The spelling of 74258473 in words is "seventy-four million, two hundred fifty-eight thousand, four hundred seventy-three".